Denshi Jisho — Online Japanese dictionary

う 1: indicates speculation;
2: indicates will;
3: indicates invitation
Auxiliary verb 
卯 う fourth sign of Chinese zodiac (The Hare, 5am-7am, east, February)
Noun 
宇 う counter for buildings, etc.
Counter 
得 う 1: to get; to acquire; to obtain; to procure; to earn; to win; to gain; to secure; to attain;
2: to be possible
Nidan verb with u ending (archaic), Transitive verb 
有 う bhava (becoming, existence)
Noun, Buddhist term 
羽 う fifth degree (of the Japanese & Chinese pentatonic scale)
Noun 
諾 う yes; all right; OK; okay
Interjection, Archaism 
鵜 う cormorant
Noun 
うん 1: yeah; uh huh;
2: (Noun prefix) some (at the start of a number in place of a digit)
Common word, Interjection 
ウィ yes (fre: oui)
Interjection 
ウイ yes (fre: oui)
Interjection 
うず 1: (Archaism) will probably be;
2: intending to; will;
3: should
Auxiliary verb 
ウソ Eurasian bullfinch (Pyrrhula pyrrhula); Japanese bullfinch
Noun, Usually written using kana alone 
ウゾ ouzo
Noun, gre: 
ウッ oof; ough; ulp
Interjection 
ウド udo (plant related to ginseng, used in medicine and cooking) (Aralia cordata)
Noun, Usually written using kana alone 
ウニ sea urchin; sea urchin eggs
Noun, No-adjective 
ウベ water yam (Dioscorea alata) (fil: ube); winged yam; purple yam
Noun 
うむ yea; uh huh
Interjection, Archaism 
ウメ 1: Japanese apricot (Prunus mume); Chinese plum;
2: lowest (of a three-tier ranking system)
Noun 
うわ Wow!; Holy smokes!; Aaargh!; O my God!
Interjection 
上 うえ 1: above; up; over; elder (e.g. daughter);
2: top; summit;
3: surface; on;
4: before; previous;
5: superiority; one's superior (i.e. one's elder);
6: on top of that; besides; what's more;
7: upon (further inspection, etc.); based on (and occurring after);
8: matters concerning...; as concerns ...;
9: since (i.e. "for that reason");
10: (Noun suffix) (Honorific or respectful language) suffix indicating higher social standing;
11: (Archaism) place of one's superior (i.e. the throne);
12: (Archaism) emperor; sovereign; shogun; daimyo;
13: (Archaism) noblewoman (esp. the wife of a nobleman)
Common word, Noun, No-adjective, Adverbial noun, Noun suffix 
牛 うし 1: cattle; cow; ox; oxen;
2: beef
Common word, Noun 
氏 うじ family name; lineage; birth
Common word, Noun 
渦 うず whirlpool; swirl; eddy; vortex; maelstrom
Common word, Noun 
嘘 うそ 1: lie; falsehood; incorrect fact;
2: (Colloquialism) Really!; Unbelievable!; No way!
Common word, Noun 

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